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460
Democritus
Came up with the explanation/idea of the atom and made up the atomic theory -
Period: to
Modern Scientist
Modern scientist -
John Dalton
Proposed his version of the atomic theory which was the first at the time. -
Eugen Goldstein
A physicist that is credited for finding the proton, and the discoverer of anode rays. -
Hantaro Nagoako
Also developed a plantetary model of the atom and developed Japanese during the early Meiji period. -
J.J. Thomson
Used the cathode ray experiment to find the electron. -
Rutherford
used the alpha particles to find the nuclues and that it is mostly positively charged. -
Robert A. Millikan
Measured the charge of the electron. -
Albert Einstein
One of world's most phenominal scientists. He continued to deal with problems of statistical mechanics and quantum theory, which led to his explanations of particle theory and the motion of molecules. He also investigated the thermal properties of light which laid the foundation of the photon theory of light. In 1917, Einstein applied the general theory of relativity to model the structure of the universe as a whole. -
Kaluza-Klein Theory
The Kaluza-Klein theory was established in 1921 by Theodor Kaluza and Maxwell equations. In physics, Kaluza–Klein theory is a model that seeks to unify the two fundamental forces of gravitation and electromagnetism. -
Niels Bohr
Made the Planetary Model of the atom and also developed an explanation of atomic structure that underlies regularities of the periodic table of elements -
Louis de Broglie
Discovered that the electron had a dual - nature to both particles and waves -
Erwin Schrodinger
Created Schrodinger equation off of wave mechanics. -
Werner Heisenberg
Made foundational contributions to quantum mechanics. Also won the 1932 Nobel Peace Prize. -
James Chadwich
Discovered the nuetron -
Wolfgang Pauli
He received the Nobel Prize in Physics for his "decisive contribution through his discovery of a new law of Nature, the exclusion principle or Pauli principle," involving spin theory, underpinning the structure of matter and the whole of chemistry. -
Murray Gell-Mann
Gell-Mann's work in the 1950s involved recently discovered cosmic ray particles that came to be called kaons and hyperons. Classifying these particles led him to propose that a quantum number called strangeness would be conserved by the strong and the elementary interactions, but not by the weak interactions. He is still alive to this day -
Friedrich Hund
Was awarded 1966 Nobel Piece Prize by Robert Mulliken in chemistry molecular orbital theory. -
George Zweig
Won the 1969 Nobel Peace Prize for the discoveries concerning the classification of elementary particles and their interactions. He is still alive to this day
